Influence of Styrene-Ethylene-Butylene-Styrene and Stearic Acid on Poly(Lactic) Acid/Alumina Filament Composite for Fused Deposition Modeling Application

Abstract:

This study investigated the influence of adding styrene-ethylene-butylene-styrene (SEBS) and stearic acid (SA) on poly (lactic) acid (PLA) with nano-alumina (Al₂O₃) filament composite for fused deposition modeling (FDM) 3D printing (3DP) application. The filament composites were produced via hot-melt extrusion using a twin-screw extruder. Materials characterization and mechanical testing were conducted to determine the effect of SEBS+SA. Fourier transform infrared spectroscopy (FTIR) illustrated the interaction of the aliphatic group of PLA and SEBS+SA. XRD data showed that the SEBS+SA has no significant effect on crystallinity, but the differential scanning calorimetry (DSC) data showed a decreasing trend. Due to the nature of SEBS+SA, the heat capacity increased to 1.222 J/g•C°. The cold crystallization, melting, and degradation temperatures were reduced by 18.34°C, 5.29°C, and 25.19°C, respectively. An increase in the developed filament composite’s processability was evident in the MFR data. The axial strain and the toughness of PLA with nanoAl₂O₃ were increased significantly by 402.54% and 48.20%, respectively. Furthermore, the SEM images revealed overlapping of intra-and interlayers of the 3D printed specimens.

• Periodical: Solid State Phenomena (Volume 337)
• Pages: 3-10
• DOI: https://doi.org/10.4028/p-80x328
• Online since: October 2022
• Authors: Marvin S. Tolentino*, Blessie A. Basilia
• Keywords: Alumina, Fused Deposition Modeling, Poly(Lactic Acid), Stearic Acid, Styrene-Ethylene-Butylene-Styrene

References

[1] Alhijjaj M, Nasereddin J, Belton P and Qi S 2019 Impact of processing parameters on the quality of pharmaceutical solid dosage forms produced by fused deposition modeling (FDM) Pharmaceutics 11 1–21.

DOI: 10.3390/pharmaceutics11120633

[2] Daminabo S C, Goel S, Grammatikos S A, Nezhad H Y and Thakur V K 2020 Fused deposition modeling-based additive manufacturing (3D printing): techniques for polymer material systems Mater. Today Chem. 16 100248.

DOI: 10.1016/j.mtchem.2020.100248

[3] Tomacheski D, Pittol M, Ermel C E, Simões D N, Ribeiro V F and Santana R M C 2017 Influence of processing conditions on the mechanical properties of SEBS/PP/oil blends Polym. Bull. 74 4841–55.

DOI: 10.1007/s00289-017-1994-2

[4] Battegazzore D, Bocchini S and Frache A 2011 Crystallization kinetics of poly(lactic acid)-talc composites Express Polym. Lett. 5 849–58.

DOI: 10.3144/expresspolymlett.2011.84

[5] Lule Z, Ju H and Kim J 2018 Thermomechanical properties of alumina-filled plasticized polylactic acid: Effect of alumina loading percentage Ceram. Int. 44 22767–76.

DOI: 10.1016/j.ceramint.2018.09.066

[6] Nehra R, Maiti S N and Jacob J 2018 Poly(lactic acid)/(styrene-ethylene-butylene- styrene)-g-maleic anhydride copolymer/sepiolite nanocomposites: Investigation of thermo-mechanical and morphological properties Polym. Adv. Technol. 29 234–43.

DOI: 10.1002/pat.4108

[7] Chang Y W, Shin J Y and Ryu S H 2004 Preparation and properties of styrene-ethylene/butylene-styrene (SEBS)-clay hybrids Polym. Int. 53 1047–51.

DOI: 10.1002/pi.1480

[8] Ferreira R T L, Amatte I C, Dutra T A and Bürger D 2017 Experimental characterization and micrography of 3D printed PLA and PLA reinforced with short carbon fibers Compos. Part B Eng. 124 88–100.

DOI: 10.1016/j.compositesb.2017.05.013

[9] Yang Z, Peng H, Wang W and Liu T 2010 Crystallization behavior of poly(ε-caprolactone)/ layered double hydroxide nanocomposites J. Appl. Polym. Sci. 116 2658–67.

DOI: 10.1002/app.31787